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Jurnal Penelitian Hasil Hutan
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Articles 3 Documents
Search results for , issue " Vol 6, No 8 (1990): Jurnal Penelitian Hasil Hutan" : 3 Documents clear
ANALISIS KETENAGA KERJAAN PADA BEBERAPA PABRIK KAYU LAPIS DI SUMATERA DAN KALIMANTAN Abdurachman, Akub J; Sylviani, Sylviani
Jurnal Penelitian Hasil Hutan Vol 6, No 8 (1990): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1990.6.8.459-466

Abstract

An analysis of man power has been conducted in several plywood  mills in Sumatera  and Kalimantan in year 1987, and the result presented  in this paper.  The result shows  that  the average employment  is 993 men per mill.Based  on  mill  capasity  and  log input,  the average level  of  labour  absorption  is 11.33 men/1000 cum  designed  capasity, and 10.66 men/1000  cum  log input.  The  latter  figure is  more or less similar to  that  of  the developed  country  in which  the  average  level  of  labour absorption  is.11.33 men/1000  cum.  However  labour  absorption in each  mill  it is not proportional to both capasity  and  material  utilization  (logs). Organization  structure  of mills surveyed  have a long span of control  so it is recommended to be simplified.
PEMBUATAN ARANG 4 JENIS BAMBU DENGAN CARA TIMBUN Nurhayati, Tjutju
Jurnal Penelitian Hasil Hutan Vol 6, No 8 (1990): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1990.6.8.500 - 503

Abstract

A study on  charcoal  manufacture  using  pit   method was  carried out 4 bamboo   species from West Java, namely andong (Gigantochloa verticillata Munro), ater   (Gigantochloa ater  Kurz), bitung (Dendrocalamus asper Back) and tali (Giganiochloa apus  Kurz). The  charcoal produced  which  was  completed   after 2 days,  were  then  subjected   to chemical analysis. The analysis consist of specific gravity, moisture content, ash, volatile  matter  and  fixed   carbon.  In addition to the aboue test, the charcoal of each species were tested  in blacksmith   which  manufacture  chopping knife.The  result  shows that out of the 4 bamboo  species tested,  ater seems to  be the  best  with  regard to  charcoal yield, chemical  properties  and application in blacksmith  work.
BEBERAPA SIFAT FISIS DAN KIMIA EKSTRAK TANIN Pari, Gustan
Jurnal Penelitian Hasil Hutan Vol 6, No 8 (1990): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (7459.036 KB) | DOI: 10.20886/jphh.1990.6.8.482 - 492

Abstract

The  result  of  study on  some  physical and  chemical  properties of  tannin  ex tractiues prepared by  using  extraction method   is presented in  this  report. Treatment  conditions for  tannin  extractive   were  respectively   fineness  of  40 and  60 mesh,  extraction  temperature   were: 60°C,  80°C,  100°C  ahd raw material species  for this experiment  were Pinus merkusii, Rhizopora apiculata  and Acacia  decurrens.The result  shows that the yield of  tannin  extroctives ranges from 0,52­22,75%,  tannin  content: 2,99­70,76%, moisture content: 0,0022­25,58%, solubility in cold water:   0,096­3,50%  and  tannin  content  of  residure  ranges from 0,19­3,75%.

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